/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.aliyun.opensearch.util;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

public class DaemonThreadFactory implements ThreadFactory {

    private AtomicInteger threadNo = new AtomicInteger(1);
    private final String  nameStart;
    private final String  nameEnd  = "]";

    public DaemonThreadFactory(String poolName){
        nameStart = "[" + poolName + "-";
    }

    public Thread newThread(Runnable r) {
        Thread newThread = new Thread(r, nameStart + threadNo.getAndIncrement() + nameEnd);
        newThread.setDaemon(true);
        if (newThread.getPriority() != Thread.NORM_PRIORITY) {
            newThread.setPriority(Thread.NORM_PRIORITY);
        }
        return newThread;
    }

}
